2285816 has 32 divisors (see below), whose sum is σ = 4771200. Its totient is φ = 1019520.

The previous prime is 2285813. The next prime is 2285821. The reversal of 2285816 is 6185822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2285813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2870 + ... + 3578.

It is an arithmetic number, because the mean of its divisors is an integer number (149100).

2^2285816 is an apocalyptic number.

2285816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2285816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2385600).

2285816 is an abundant number, since it is smaller than the sum of its proper divisors (2485384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2285816 is a wasteful number, since it uses less digits than its factorization.

2285816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759 (or 755 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 2285816 is about 1511.8915305008. The cubic root of 2285816 is about 131.7287051195.

The spelling of 2285816 in words is "two million, two hundred eighty-five thousand, eight hundred sixteen".